The problem with the saturn is that most of the best games never made it out of japan. Some were later ported to the psone and released worldwide like grandia and dead or alive but others, like radiant silvergun (considered by many the best shmup ever) never made it. Saturn bomberman is widely considered the best bomberman ever.If you're into 3D fighting games, Last Bronx is worth considering.

I never played shining the holy ark but I remember it getting 80+ reviews.

Chronix mentioned Astal, I never played it but the game sure was beautiful.

Shining The Holy Ark is old school dungeon crawling. The narrative isn't particularly strong, but if you want to play Shining Force 3 at some point, Shining The Holy Ark is a prequel, story-wise.

As far as Panzer Dragoon Saga goes, you don't necessarily need to permanently own it... but you really do owe it to yourself to play it. It really was ahead of its time considering the era it released in and is still a damn good game even now. Look at the $150 as a deposit that you can get back after you're done playing the game by selling it right back on Ebay.

With Radiant Silvergun, normally I'd recommend giving that a go as well since it's one of the most impressive titles on the platform, but the HD rerelease on Xbox 360 is imminent so... save your cash.

It was such a good feeling to have sega rally in my living room when the game was still the hottest thing at the arcades. It's not something I would recomend today though. You can find the sega rally that was released for current gen consoles for dirt cheap. Daytona USA was a pretty bad port, even sega admitted that it was rushed.Virtua Cop and House of the dead should be played with a lightgun.